Nekuvandudzwa kwesainzi uye tekinoroji, mhando nyowani dzezvekudya zvekusangana dzinogara dzichibuda muhupenyu hwezuva nezuva, uye silicone ndeimwe yayo.Semuyenzaniso, masilicone spatulas ekubvongodza, mold dzekugadzira makeke epastry, zvindori zvekuisa chisimbiso zvetableware, uye zvigadzirwa zvevana zvakadai sepacifiers, mashanga, uye bhurasho remazino zvose zvinogadzirwa nesilicone.Seyakanyanya kushanda adsorption zvinhu, chikafu chekubata chikafu chakagadzirwa nesilicone chine hunhu hwekureruka, anti kudonha, nyore kuchenesa, uye isina ngura, uye inofarirwa zvakanyanya pakati pevatengi vari kutsvaga hutano.Asi vatengi vazhinji vanonetsekana zvakare kuti midziyo yesilicone yakave yakatarisana nekupisa kwakanyanya kwenguva yakareba, inosangana neyakakura yemafuta uye acidic chikafu, uye inosangana zvakananga nechikafu, ichaita plasticizer mig uye heavy metal precipitation. panguva yekubika?Chii chinonzi "precipitate"?Iine chepfu kumuviri wemunhu kana ikadyiwa here?Pane here vimbiso yemhando uye chengetedzo yezvigadzirwa zvesilicone?
Kuti tinzwisise mamiriro emhando yemafoshoro nesilicone mold inotengeswa mumusika weQingdao uye kupa vatengi ruzivo rwechokwadi uye rwakavimbika rwechigadzirwa, Qingdao Municipal Consumer Protection Commission yakatanga zviri pamutemo bvunzo dzekufananidza dzemamwe mafoshoro esilicone uye zvigadzirwa zvesilicone mold panopera. 2021. Mangwanani emusi waKurume 9 na10 o'clock, chirongwa chakakura chekusimudzira sainzi "Consumer Laboratory" yakabatanidzwa neQingdao Municipal Consumer Protection Commission, Qingdao Municipal Quality Inspection Institute, uye Peninsula Urban Daily yakatanga "3.15 Special Edition", iyo yakapinda murabhoritari yemuviri uye yemakemikari uye yakananga nzvimbo yekuyedza "kutora" kutama kwesilicone kitchenware panguva yekupisa-kupisa.
Huwandu hwemasamples ekuedza uku kwekuenzanisa mabhechi makumi maviri, ese akatengwa nevashandi veQingdao Consumer Protection Commission sevatengiwo zvavo munzvimbo dzakasiyana siyana dzekutenga, masupamaketi, pamwe nenzvimbo dzekutengesa e-commerce seJD. uye Tmall muQingdao.Pakati pavo, 10 mabheti emafoshoro esilicone anouya kubva kunze kwekutengesa mall;10 mabhechi esilicone molds, 7 batch kubva kunze kweInternet kunotenga, uye matatu mabhechi kubva kuzvitoro zvekutenga online.
Muyedzo wekuyedza wakaitwa paQingdao Product Quality Inspection and Research Institute, uye zvinhu zvekuyedza zvaisanganisira kushandiswa kwe potassium permanganate, kutama kwakazara, simbi dzinorema (muPb), plasticizer migration (DEHP, DAP, DINP, DBP), uye zvinhu zvinochinjika ( antimony Sb, arsenic As, barium Ba, cadmium Cd, chromium Cr, lead Pb, mercury Hg, selenium Se).Izvo zviyero zvinosanganisira GB 4806.11-2016 "National Food Safety Standard yeRubber Materials uye Zvigadzirwa muKusangana neChikafu", GB 9685-2016 "National Food Safety Standard yeKushandiswa kweAditives muKusangana neChikafu uye Zvigadzirwa", GB 31604.30-2016 "Nyika Yekuchengetedza Chikafu Chiyero cheKutemerwa uye Kutama kwePhthalates muKusangana neChikafu Zvekushandisa uye Zvigadzirwa" GB 6675.4-2014 "Kuchengetedzwa Kwematoyi - Chikamu 4: Kutama Kwezvinhu Zvakasiyana", nezvimwe.
Muchinyorwa chino che "Consumer Lab", isu tichaongorora zvakananga kutama kwesilicone kitchenware panguva yekubika, ichiratidza chimiro chayo chepakutanga, chinova chinovhura maziso uye chiitiko chinofema.Mukupindura zvinhu zvinokuvadza zvakaita sesimbi dzinorema uye mapurasitiki ane hanya zvakanyanya nevagari nevatengi, kuyedza kwakawedzera kuyedza kwakakodzera uye kushandisa zviridzwa zvemhando yepamusoro uye midziyo yekuyera yakanangwa uye chaiyo, vachishandisa sainzi kudzoreredza chokwadi.
Han Bing, mukuru wechirongwa chekuenzanisa chekuyedza cheQingdao Municipal Consumer Protection Commission, naSun Chunpeng, mainjiniya anobva kuQingdao Municipal Quality Inspection Institute, vakashanyira kamuri yekutepfenyura ye "Consumer Laboratory" kuti vaburitse mhedzisiro dzekupedzisira. edza uye kupa hutungamiriri hwevatengi.Izvo zvinofanirwa kucherechedzwa kuti mhedzisiro yeiyi bvunzo yekuenzanisa inongokonzeresa masampuli uye haimiriri mhando yemamwe mamodheru kana mabheti emhando.Hapana chikwata chinotenderwa kushandisa maedzo ekufananidza kushambadza pasina mvumo;'Mutengo' wemuenzaniso ndiwo chete mutengo wekutenga panguva iyoyo.
Murabhoritari yemuviri neyemakemikari yeQingdao Quality Inspection Institute, mabhechi makumi maviri emasampula echigadzirwa chesilicone akatanga kutumirwa kuhovhoni ye220 degree uye akachembera mumhepo inopisa kwemaawa gumi, achitevedzera nharaunda yekudziya kwepamusoro yezvigadzirwa zvesilicone panguva yekushandiswa kwezuva nezuva.Mushure memaawa gumi, tora 20 samples uye utonhodze.Cheka imwe nzvimbo yesilica gel kubva kune imwe neimwe yemasampuri makumi maviri zvichienderana neimwe yekuyedza reshiyo yekugadzirira sampuli.
Yakaedzwa sampu yachembera mumhepo inopisa pa220 ° C kwemaawa gumi
Paunenge uchishandisa silicone spatula uye molds, chinonyanya kukosha kune vagari vemo ndechekuti chimwe chinhu chichatama kunze.Iyo yekuyedza purojekiti ye'chata kutama' inokwanisa kunyatso tora huwandu hwezvinhu zvisingaite muzvokudya zvinopinda muchikafu.
Ndakaona nyanzvi dzemurabhoritari dzichinyudza silicone yakachekwa muchikafu simulant ye4% acetic acid uye 50% ethanol, vachiinyudza kwemaawa mana pa100 ℃, vozoisa mushonga wekunyorovesa mundiro inoputika kusvika yanyungudika kusvika pakuoma.Panguva ino, mamwe epasi pedhishi rinoputika anoita kunge achangobva kucheneswa, asina ruvara;Zvimwe zvinogona kuonekwa neziso rakashama rine zvishoma zvishoma zvakasara zvichena zvakabatanidzwa, izvo zvinoratidzika se "chiyero".
Izvo zvakasara pazasi kwedhishi inoputika ndiyo kubuda kwezvigadzirwa zvesilicone
Uchishandisa acetic acid uye ethanol kutevedzera iyo ine mafuta uye acidic nharaunda umo silicone midziyo inobikirwa, izvo zvinosara zvinoonekwa nemunhu wese ndizvo zvisingaite zvinhu zvinobuda kunze."Sun Chunpeng, mainjiniya anobva kuQingdao Quality Inspection Institute, akazivisa kuti zvinhu zvisingaite mumidziyo yekubata chikafu zvinotamira muchikafu, izvo zvinogona kuburitsa kunhuhwirira nyore, zvichikanganisa kuravira kwechikafu uye kunyange kukanganisa hutano hwevanhu.
Zvisinei, iyo yose yekufambisa data yakawanikwa kubva kumakumi maviri emabheji erubha spatula uye silicone mold samples mukuedza uku ichiri kunyatsosimbisa - kutama kwese silicone spatula kunonyanya kuiswa muhuwandu hwe 1.5 mg / square decimeter kusvika 3.0 mg / square decimeter. , nepo kutama kwese kwesilicone mold kunonyanya kuiswa muhuwandu hwe 1.0 mg / square decimeter kusvika 2.0 mg / square decimeter, iyo yose inosangana nezvinodiwa zvepasi rose GB 4806.11-2016 (≤ 10 mg / square decimeter).Mukuwedzera, migumisiro yehuwandu hwekutama kwesilicone spatula uye silicone mold haina kuratidza kuchinja kwemaitiro nemutengo wemuenzaniso.
Iyo "kushandiswa kwe potassium permanganate" bvunzo ndechimwe chiedzo chinogona kugonesa kutama kwezvigadzirwa zvesilicone "kuratidza chimiro chavo chepakutanga".Vashandi vekuyedza vakanyudza iyo yakachekwa silica gel mumvura pa60 ℃ kwemaawa maviri.Mushonga wekunyudza wakaiswa potassium permanganate solution, uye kukosha kwekushandisa kwe potassium permanganate kwakazotemerwa kuburikidza nekuchinja kwemavara, kuverenga kwedosi, nezvimwe.
Izvo zvakasara pazasi kwedhishi inoputika ndiyo kubuda kwezvigadzirwa zvesilicone
Uchishandisa acetic acid uye ethanol kutevedzera iyo ine mafuta uye acidic nharaunda umo silicone midziyo inobikirwa, izvo zvinosara zvinoonekwa nemunhu wese ndizvo zvisingaite zvinhu zvinobuda kunze."Sun Chunpeng, mainjiniya anobva kuQingdao Quality Inspection Institute, akazivisa kuti zvinhu zvisingaite mumidziyo yekubata chikafu zvinotamira muchikafu, izvo zvinogona kuburitsa kunhuhwirira nyore, zvichikanganisa kuravira kwechikafu uye kunyange kukanganisa hutano hwevanhu.
Zvisinei, iyo yose yekufambisa data yakawanikwa kubva kumakumi maviri emabheji erubha spatula uye silicone mold samples mukuedza uku ichiri kunyatsosimbisa - kutama kwese silicone spatula kunonyanya kuiswa muhuwandu hwe 1.5 mg / square decimeter kusvika 3.0 mg / square decimeter. , nepo kutama kwese kwesilicone mold kunonyanya kuiswa muhuwandu hwe 1.0 mg / square decimeter kusvika 2.0 mg / square decimeter, iyo yose inosangana nezvinodiwa zvepasi rose GB 4806.11-2016 (≤ 10 mg / square decimeter).Mukuwedzera, migumisiro yehuwandu hwekutama kwesilicone spatula uye silicone mold haina kuratidza kuchinja kwemaitiro nemutengo wemuenzaniso.
Iyo "kushandiswa kwe potassium permanganate" bvunzo ndechimwe chiedzo chinogona kugonesa kutama kwezvigadzirwa zvesilicone "kuratidza chimiro chavo chepakutanga".Vashandi vekuyedza vakanyudza iyo yakachekwa silica gel mumvura pa60 ℃ kwemaawa maviri.Mushonga wekunyudza wakaiswa potassium permanganate solution, uye kukosha kwekushandisa kwe potassium permanganate kwakazotemerwa kuburikidza nekuchinja kwemavara, kuverenga kwedosi, nezvimwe.
Mhedzisiro dzekuyedza dzinoratidza kuti kudyiwa kwe potassium permanganate mumafoshoro esilicone kunonyanya kunyura mumhando ye2.0 mg/kg kusvika 3.0 mg/kg, ukuwo kudyiwa kwe potassium permanganate musilicon molds kunonyanya kunyura muchikamu che1.5 mg/kg. kusvika ku2.5 mg/kg, iyo inosangana nezvinodiwa nemutemo wenyika GB 4806.11-2016 (≤ 10 mg/kg).Izvo zvinokonzeresa kukosha kwe potassium permanganate kudyiwa kwesilicone foshoro uye silicone molds hazvina kuratidza shanduko yemaitiro nemitengo yemuenzaniso.
>>> Ongororo yezviridzwa: Simbi dzinorema dzakaonekwa, uye huwandu hunoenderana nemaitiro enyika.
Ko silicone kitchenware inoburitsa zvinhu zvine chepfu senge simbi inorema uye plasticizer panguva yekubika?Uku ndiko kumwe kunetseka kukuru kune vagari vemo.Kuedza kwekuona kwesimbi dzinorema uye plasticizers yakakamurwa kuita nhanho huru mbiri: bhuku rekugadzirira sampuli uye kuongororwa nemidziyo yekuona.Zvakakosha kutaura kuti sezvo simbi inorema iri kunetseka nevatengi, kuyedza uku kwakawedzera kuwonekwa kwesimbi inorema.
Zvinoenderana nezvinodiwa zveiyo yenyika inosungirwa standard GB 4806.11-2016 "National Food Safety Standard Rubber Materials uye Zvigadzirwa muKusangana neChikafu", mushure mekuyedza nekuongorora, zvese mhedzisiro yeheavy metal (inoverengerwa se lead) zvinhu zvekuyedza zvema batch makumi maviri. yesilicone foshoro uye silicone molds zvinosangana nezvinodiwa.
Nguva yekutumira: May-18-2023
